Carn Fadryn Castle

A stone-walled hillfort with stone huts. There is a large sloping annex on the north side and a small citadel, similar to Garn Boduan, on the very top. The construction of the citadel in the 12th century by the sons of Owain Gwynedd is recorded by Giraldus Cambrensis while on his famous journey through Wales in 1188. He thought it unusual because up to that time native rulers had used mostly earth and timber strongholds. This is one of the earliest Welsh stone castles in Gwynedd, but very prehistoric in style.